Question

A random variable X has the following probability distribution :

x = x	0	1	2	3				7
P(X=x)	0	k	2k	2k	3k	k2	2k2	7k2 + k

Determine (i) k

(ii) P(X> 6)

(iii) P(0<X<3).

Answer 1

Refer to the solution of Q. 8 of Exercise 7.1.